William w



COATING OR PLASTIC.

TL. i. m c

W. H. HOXIE, OF SAME PLACE.

ARTIFICIAL-STONE COMPOSITION.

SPECIFICATION forming part of Letters Patent No. 254,365, dated February 28, 1882. Application filed November 16, 1881. (No specimens.) I

,L'SON, a citizen of the United States, residing :at Corning, in the county of Adams and State of Iowa, have invented certain new and useful 1 Improvements in Artificial-Stone-Oomposi-- tion; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Heretoforeartificial stone has been made by fcombining together Portland cement, sand,

" slaked lime,aud various chemical substances; but owing to the fact that such stone has been deficient in adhesive properties it has beenfound to crum le or become disintegrated after having been exposed to the action of the elements for any considerable period of time. The object of'my invention is to provide for the manufacture of artificial stone which shall be free from the objections to those now in use,

. owing to the use of newingredients and a novel coin bin-ation of them with old ones.

In carrying my invention into effect I take one part, in bulk,ot Portland cement one part of what is termed llihlwaukee cement and {one part of unslakefl lime wliicli has been reduced to a pow er or 0 small particles, and

sojghq ghly mix the n in a dry state. To one part of the above-described cdtnpbund I add five parts, by bulk, of clean dry sand which mixture lOllIlS'lBllG base of my stoi 3 In providing a binder for the compound above described I use soft water to every thirty (30) gallons of w nt acre 18 added two (2) pounds of common alt one (1) pound of all pound of any alkaline subsah ieter one 'stance, and one-half 1;) pound 0 car ona e o 0 ammonia. This latter coinpount ,w ienmixe wit e two kinds of cement, produces sufii cientchemical action upon the mass to cause it,when suitably tamped or pressed into molds,

' to be converted into a solid stone, capable of I 5 withstanding the action of the elements for an f indefinite period of time. After the different kinds of cement, the lime, and the sand have been thoroughly mixed, as above described, I take, say, one quart of the liquid compound and add to it twelve (12) quarts of water, or about in that proportion for greater quantities, with which I proceed to wet the compound of cement, lime, and sand, using so much of the liquid as is necessary to properly prepare the first mixture for being tamped or pressed into molds of the size and form that it is desirable to have the stone assume when completed.

I Experience has taught me that when the two kinds of cement named are used together, or when the Milwaukee cement is used-with any of the other forms of similar cement, the efl'ect is very different from what it is when only one of the other kinds are used, the ra- 'i I TED STATES PATENT OFFICE,

' WILLIAM W. PATTERSON, OF CORNINGt, IOWA, ASSIGNOR OF ONE-HALF TO Having thus fully described my invention, O

what I claim Patent, isa A composition to be formed into artificial stone, consisting of Milwaukee cement, Portland or other similar cem ept, unslaked lime n a ry a .pos statennd'sandand tEeii adding thereto a solution made by combining soft water, salt, saltpeter, an alkali and car-.=

bonate of ammonia, the propor ions of titers-i ten s seu neing hereinbefore described.

In testimony whereof I afiix my signaturein presence of two witnesses.

,and desire to secure by Letters 7 substantially such as are WILLIAM w. PATTEasoNf Witnesses: E. O. MITCHELL,

EnOoPLAND. 

